Method, device and system for establishing communication connection

Abstract

A method and device for communication connection are provided. The method may include: sending by a host device, a broadcast connection request to slave device according to a first timer and a broadcast frequency hopping information of the host device; the broadcast connection request being used to set the currently used frequency hopping information by a target slave device as the communication frequency hopping information; receiving by a the host device, a broadcast acknowledgement response sent from the slave device, sending by the host device, a connection request to the slave device having sent the broadcast acknowledgement response, according to the first timer and the communication frequency hopping information; and establishing by the host device, a communication connection with the slave device having sent the broadcast acknowledgement response. This method can reduce the delay of establishing a communication connection between a host device and a slave device.

What is claimed is: 
     
       1. A method for communication connection, comprising:
 sending, by a host device, a broadcast connection request to at least one slave device according to a first timer and a broadcast frequency hopping information of the host device, wherein the broadcast connection request carries a communication frequency hopping information, and the first timer uses different frequency points within each timing duration; wherein the broadcast connection request being used to set the currently used frequency hopping information as the communication frequency hopping information by a target slave device, the target slave device is a slave device receives the broadcast connection request according to the broadcast frequency hopping information and a second timer, and a timing duration of the first timer is less than the timing duration of the second timer; 
 receiving, by the host device, a broadcast acknowledgement response sent from the at least one slave device; 
 sending, by the host device, a connection request to the at least one slave device having sent the broadcast acknowledgement response, according to the first timer and the communication frequency hopping information; and 
 establishing, by the host device, a communication connection with the at least one slave device having sent the broadcast acknowledgement response. 
 
     
     
       2. The method of  claim 1 , wherein the broadcast connection request is further configured to instruct the target slave device to set a second timer currently used as the first timer. 
     
     
       3. The method of  claim 2 , wherein after establishing a communication connection with the at least one slave device, the method comprises:
 using, by the host device, the communication frequency hopping information and the first timer to interact with the connected slave device. 
 
     
     
       4. The method of  claim 1 , wherein a first frequency point used by the host device to send the broadcast connection request is different from a second frequency point, the second frequency point is a frequency point used by the host device and the slave device to interact with each other. 
     
     
       5. The method of  claim 4 , wherein in the broadcast mode, the timing duration of the first timer is a period T 1  of a hopping frequency of the host device, the timing duration of the second timer is a period T 2  of the hopping frequency of the slave device, and the host device hops frequency point T 2 /T 1  times during the period T 2 . 
     
     
       6. The method of  claim 1 , wherein the timing duration of the second timer is an integer multiple of the timing duration of the first timer. 
     
     
       7. The method of  claim 1 , wherein during the timing of the first timer, restarting the first timer when a timer interrupt is triggered. 
     
     
       8. The method of  claim 1 , when the host device does not receive the broadcast acknowledgement response fed back from the slave device, the host device enters into the next process of sending the broadcast connection request in the first timer. 
     
     
       9. A method for communication connection, comprising:
 receiving, by a slave device, a broadcast connection request according to a broadcast frequency hopping information and a second timer, wherein the broadcast connection request is a request sent from a host device according to the broadcast frequency hopping information and a first timer, the broadcast connection request carries the communication frequency hopping information, and a timing duration of the first timer is less than the timing duration of the second timer; 
 setting, by the slave device, the currently used frequency hopping information as the communication frequency hopping information according to the broadcast connection request; 
 sending, by the slave device, the broadcast acknowledgement response to the host device; 
 receiving, by the slave device, a connection request, wherein the connection request is a request sent from the host device according to the first timer and the communication frequency hopping information when the host device receives the broadcast acknowledgement response; and 
 establishing by the slave device, a communication connection with the host device according to the connection request. 
 
     
     
       10. The method of  claim 9 , wherein after receiving the broadcast connection request, the method comprises:
 setting, by the slave device, the second timer currently used as the first timer according to the broadcast connection request. 
 
     
     
       11. The method of  claim 10 , wherein after establishing the communication connection with the host device, the method comprises:
 interacting, by the slave device, with the host device using the communication frequency hopping information and the first timer. 
 
     
     
       12. The method of  claim 9 , wherein after establishing the communication connection with the host device, the method comprises:
 monitoring, by the slave device, the broadcast connection request sent from the host device by the second timer and the broadcast frequency hopping information, if the connection request sent from the host device not being received within a preset duration. 
 
     
     
       13. The method of  claim 9 , wherein a third frequency point used by the slave device to receive the broadcast connection request is different from a fourth frequency point, the fourth frequency point is a frequency point used by the slave device and the host device to interact with each other. 
     
     
       14. The method of  claim 9 , wherein the slave device using the second timer and the broadcast frequency hopping information to monitor the broadcast connection request sent from the host device, when the slave device does not receive the connection request sent from the host device within a preset duration. 
     
     
       15. A communication system, comprising a host device and a slave device;
 the host device being configured to send a broadcast connection request to the slave salve device according to a first timer and a broadcast frequency hopping information of the host device, the host device being further configured to send a connection request to the slave device according to the first timer and a communication frequency hopping information after receiving a broadcast acknowledgement response sent from the slave device; 
 the slave device being configured to receive the broadcast connection request according to the broadcast frequency hopping information and a second timer, and send the broadcast acknowledgement response to the host device, the slave device being further configured to receive the connection request sent from the host device, and establish a communication connection with the host device according to the connection request. 
 
     
     
       16. The communication system of  claim 15 , wherein the broadcast connection request is configured to instruct a target slave device to set the second timer currently used as the first timer. 
     
     
       17. The communication system of  claim 15 , wherein after the host device establishing a communication connection with at least one slave device transmitting a broadcast acknowledgement response, the host device is further configured to:
 use the communication frequency hopping information and the first timer to interact with the connected slave device. 
 
     
     
       18. The communication system of  claim 15 , wherein the first frequency point used by the host device to send the broadcast connection request is different from the second frequency point, the second frequency point is a frequency point used by the host device and the slave device to interact with each other. 
     
     
       19. The communication system of  claim 15 , wherein after the slave device receives the broadcast connection request according to the broadcast hopping information and the second timer, the slave device is further configured to:
 set the second timer currently used as the first timer according to the broadcast connection request. 
 
     
     
       20. The communication system of  claim 15 , wherein after the slave device establishes a communication connection with the host device according to the connection request, the slave device is further configured to:
 use the communication frequency hopping information and the first timer to interact with the host device.